Liquid-handling means



Nov. 12, 1929. 5. w, DAVIS 1,735,733

LIQUID HANDLING MEANS Filed Dec. 9, 1925 m dvwsz 4517611113 Patented Nov. 12, 1929 UNITED STATES PATENT OFFICE ERNEST W. DAVIS, 01 OAK PARK, ILLINOIS, ASSIGNOR TO ALEMITE CORPORATION, 01? CHICAGO, ILLINOIS, A CQRl-ORATION OF DELAWARE LIQUID-HANDLING MEANS Application filed December My invention relates to means for handling liquids such as lubricant and other materials. Devices according to the invention may be advantageously employed for handling any material of a substantially liquid nature, such as soap, mucilage, gasoline, or lubricating oil, even where such material contains more or less occluded air up to the point of forming a more or less irregular supply means or a uniform emulsion sufficiently dense to be only slightly compressible.

Among the objects and advantages of the invention may be enumerated:

First, to generate high pressure by an inertia operated power plant with a minimum of operating mechanism.

Second to limit the oscillations of a vibratin weight with a minimum of damping.

Further objects and advantages of the invention will become apparent as the description proceeds.

In the accompanying drawings Figure 1 is a central axial section of an embodiment of the invention;

Figure 2 is a section on line 22 of Figure 1; and v Figure 3 is an enlarged detail of the fastening means for the plunger.

In the embodiment of the invention selected for illustration, the base 10 is provided with a central boss 12, an upper cylinder bushin 14 and a lower valve retaining bushing 16. The bushing 14 has a relatively minute axial bore 18 forming the compression cylinder. This cylinder is closed at its lower end by a ball 20 of larger diameter than the cylinder itself, and resiliently held a ainst the tapered seat formed by enlarging t e bore, by a suitable spring 22. The bore of the boss 12 4 is provided with an annular shoulder 24 forming a seat for the spring 22 above it, and a seat for a second ball check valve 26 below it. The ball 26' is held seated by the spring 28 held in place by the lower bushing 16.

A plurality of standards 30 extend upwardly from the base 10 to support an upper bafiie plate 32. This plate is centrally apertured to receive a guide sleeve 34 riveted thereto by turning over a flange at 36. The 50 upper end of the guide sleeve also has an 9, 1925. Serial No. 74,423.

outwardly turned flange 38 for retainin a butter plate 40 having a plurality of pro ections 42 struck up therefrom, and riding on a resilient annulus 44 of cork, rubber, or the like. A heavy, circular weight 46 of an outer diameter substantially the same as that of the baffle plate 32 lies above the buffer plate 42 in spaced relation, being normally supported by a coil spring 48 of large diameter riding on the outer edge of the baffle plate 32 and engaging a suitable annular seat at 50 on the weight. The weight is guided in its movement by a central plunger comprising a main portion 52 threaded into the weight at its upper end and sliding in the sleeve 34, and an extension 54 extending down through a guide spider 56 to terminate in a reduced plunger portion proper 58 shaped to enter the compression cylinder 18. The extension 54 is clamped in the main portion 52 by a set screw 60 which, also passes through and holds in place a ring 62 forming a lower abutment for a spring 64 of smaller diameter, which spring limits upward movement of the weight and plunger.

The guide spider 56'is oflset downwardly at 66 and then terminates in a peripheral lip 68 clamped in place between the base 10 and shoulders on the standards 30. A suitable filter element 70 overlies the guide spider 56 to define a chamber 72 to which access may be g had only through the filter, and from which the cylinder 18 will withdraw the material.

A tube 74, having an inturned lip 76 clamped between a retaining ring 78 threaded on the base 10 and a gasket 80 cooperates with the base 10 to define a receptacle completely enclosing all the rest of the structure. A cap 82 at the top completes the housing.

A filling inlet is provided at 84. The upper end of this inlet determines the highest level to which the container can be filled, and is positioned at such a level that no appreciable amount of liquid can lie above the bafiie plate 32, which liquid might surge and interfere with the free oscillation of the weight 46.

When the device as a whole is mounted on any support having either a regular or irregular vibration or oscillation arallel to the axis .of the plunger, the weig t will periodically move down and force the plunger 58 into the cylinder 18. In the embodiment disclosed, this plunger is so small compared with the weight 46 that it cannot be employed to limit the oscillations of the weight, as the forces are so large that the strength of the material would be exceeded and the bushing 14 or extension 54, or both, would be hammered out of shape. The downward movement of the weight is accordingly limited by abutment with the projections 42 on the buffer plate 40. The parts are preferably so adusted that at the end of its downward movement, the plunger 58 will just touch the ball 20 sufficiently to slightly unseat it. lVhile not essential, this slightly increases the pressure that can be developed, by relieving the compressed material in the cylinder 18 from the back ressure of the spring 22 at the extreme en of the down stroke. The projections 42 are provided so that the contact with the weight will be on a number of spaced points or relatively small areas. This is because, especially when the liquid in the container is more or less viscous, the surfaces of the weight and the buffer plate may become wetted with the liquid. If this should occur, a large fiat contact area would make the parts cleave together after impact due to the viscosity and capillary action of the film of liquid between them.

It is desirable that the user should be pre vented from removing the plunger and extension 54 except when the device as a whole is completely taken apart, because it would be difiicult or impossible to replace them and et the extension 54 through its guiding hole in the spider 56 without injury to these relatively small parts. It will be noted, that to get at the set screw 60 it is necessary to re move the retaining ring 78 and the tube 74, thereby exposing the entire mechanism from the side. In this condition there is direct access to the spider 56 as well as to the set screw 60.

Without further elaboration the foregoing will so fully explain the gist of my invention, that others may, by applying current knowledge, readily adapt the same for use under various conditions of service, without eliminating certain features which may properly be said to constitute the essential items of novelty involved, which items are intended to be defined and secured to me by the following claims.

I claim:

1. Handling means for material of a substantially li uid nature, comprising a frame, spaced circu ar plates at opposite ends thereof, a tube having an inturned lip clamped to the botton one of said plates to form a container, a cylinder in said bottom plate, an inertia actuated power device above the upper plate, means driven by said power device for expelling material from said cylinder,

and filling means permitting filling of said tube up to the level of said upper plate only.

2. Handling means for material of a substantially liquid nature, comprising a frame, spaced plates at opposite ends thereof, a tube clamped to one of said plates to form a container, a cylinder in said bottom plate, a

power device above the upper plate, means driven by said power device for expelling material from said cylinder, and filling means permitting filling of said tube up to the level of said upper plate only.

3. Handling means for material of a substantially liquid nature, comprising a frame, spaced plates at opposite ends thereof, a cylinder in the bottom plate, a source of liquid material supply for said cylinder, an inertia actuated power device above the upper plate, and means driven by said power device for expelling material from said cylinder.

4. Handling means for material of a substantially liquid nature, comprising a cylinder. means for supplying a liquid material to said cylinder, a plunger movable into and out of said cylinder to apply pressure to material therein and eject it therefrom, a weight mounted for oscillation due to its inertia, a connection between said weight and said plunger, said plunger being too small to stand the impact of said weight, impact means other than said plunger for limiting movement of the parts in the direction carrying said plunger into said cylinder, and an outlet ball check valve at the end of said cylinder, said valve being of greater diameter than said cylinder, said impact means permitting said weight to move said plunger far enough to just lift said valve.

5. Handling means for material of a substantially liquid nature, comprising a cylinder, means for supplying a liquid material to said cylinder, a plunger having a reduced end portion movable into and out of said cylinder to apply pressure to material therein and eject it therefrom, a weight mounted for oscillation due to its inertia, a connection between said weight and said plunger, the end portion of said plunger being too small to stand the impact of said weight. and impact means other than said plunger for limiting movement of the parts in the direction carrying said plunger into said cylinder.

6. Handling means for material of a substantially liquid nature, comprising a cylin der, means for supplying a liquid material. to said cylinder, a plunger movable into and out of said cylinder to apply pressure to material therein and eject it therefrom, a weight mounted for oscillation due to its inertia, a connection between said weight and said plunger, an outlet ball check valve at the end of said cylinder, said valve being of greater diameter than said cylinder, and means permitting said weight to move said plunger only far enough to just lift said valve.

der, means for supplying a liquid material to said cylinder, a plunger aving a reduced end portion movable into and out of'said cylinder to apply pressure to materialtherein and eject it therefrom, a weight mounted for oscillation due to its inertia, a connection between said weight and-said plunger, the end portion of said plunger being too small to stand the impact of said weight, and cushioning means other than said plunger forpositively limiting movement of the parts.

.8. Handling means for material of a substantiallyliquid nature, comprising a frame, spaced plates at opposite ends thereof, a cylinder in said bottom plate, a spring balanced weight above the upper plate, and a plunger 'pro ecting downwardly from said weight and movable into and out of said cylinder.

9...Ha'ndling means for material. of a substantially liquid nature, comprising a cylindrical container,- a centrally located cylinder in the bottom thereof, a diaphragm spaced above the bottom thereof and having a slight clearance from the walls of said container. a'

weight above said diaphragm of substantially stantially liquid nature, comprising a cylindrical container, a diaphragm spaced above the bottom thereof and having a slight clearance fromthe walls of said container, a weight above said diaphragm of substantially the same diameter as said diaphragm, a coil f spring between said diaphragm and weight for supporting said weight, said spring hearing 'on the peripheral ed es of said weight and diaphragm, and expe ling means at the bottom of said container actuated by movementof said weight.

'11. Handling means for material'of a substantially'liq uid nature, comprising a container, a cylinder in the bottom thereof, a movable weight in the top thereof, a plunger movable-vertically with said weight for en: tering said cylinder, a guide for said plunger spaced *above said cylinder, a supporting spider for said guide, a filter overlying said spider to purify al-l material passing to said cylinder, means permitting withdrawal of said plunger from said cylinder but not from 'said guide, and abutment means independent of said plunger for limiting the movement of said weight and plunger toward said cylinder, said, abutment means and the parts restrained thereby having cooperating abutment surfaces of irregular shapes to make Contact onl on small separated areas, whereby the sur aces are prevented from sticking together.

12. Handling means for material of a substantially liquid nature, comprising a container, a cylinder, a movable weight, a plunger movable with said weight for entering said cylinder, and abutment means independent of said plunger for limiting the movement of said weight and plunger toward said cylinder, said abutment means and the parts restrained thereby having cooperating abutment surfaces ofv irregular shapes to make contact only on small separated areas, whereby the surfaces are prevented from sticking together.

13. Handling means for material of a substantially liquid nature, comprising a container, a cylinder in the bottom thereof, a plunger for entering said cylinder, a guide for said plunger spaced above said cylinder, a supporting spider for said guide, a filter overlying said spider to purify all material passing to said cylinder, and means permitting withdrawal of said plunger from said cylinder but not from said guide.

14. Handling means for material of a substantially liquid nature, comprising a cylin-.

drical container, a centrally located cylinder in the bottom thereof, a diaphram spaced above the bottom thereof and having a slight clearance from the walls of said container, a weight above said diaphragm of substantially the same diameter as said diaphram, a coil spring between said diaphram and Weight for supporting said weight, said spring bearing on the peripheral edges of said weight and diaphragm, a central axial plunger connected to said weight and movable into and out of said 0 linder, means on said plunger below said iaphragm preventing withdrawal of said weight and plunger from said receptacle, and spring means for cushioning the upward movement of said weight and plunger.

15. Handling means for material of a substantially liquid nature, comprising a cylinder, means for supplying a liquid material to oneend of said cylinder, a weight, a sprin supporting said weight, a plunger connected 'to said weight and movable into and completely out of said cylinder whereby .said plunger serves as an inlet valve, and spring means for cushioning the upward movement of said weight. 1

16. A pump comprising a receptacle havmg an opening inits lower end, a base plate secured in said opening'and having a bore extending therethrough, there being an an nular shoulder in said bore forming a valve seat, acheck valve, a spring for yieldingly holding said check valve against the outer side of said seat, a bushing secured in the inner end of said bore and having a cylinder bore formed therein, said bushing co-acting with said bore to form a valve chamber, a check valve in said chamber, a spring confined between said check valve and said annular shoulder for yieldingly holding said check valve in position to close the outer end .of said cylinder bore, a supporting member ex-= tending upwardly from said base plate, a plate carried'by said supporting member, a bearing carried by said plate, said bearing being substantially co-axial with said cylinder bore, a plunger rod reciprocably mounted in said bearing, the lower end of said plunger rod being receivable by said cylinder bore, a weight secured to the upper end of said plunger rod, a spring confined between the outer portion of said weight and said last named plate, bufier means on opposite sides of said last named plate for limiting the movement of said weight, a perforated guide for the lower end of said plunger rod, and a filter element supported by said guide.

17. A pump comprising areceptacle having an opening in its lower end, a base plate mounted in said opening and having a bore therethrough, a bushing carried by said base plate and having a cylinder bore communicating with said firstnamed bore, a support carried by said base plate, a second plate carried by said support, a plunger rod reciprocable through said second plate, a weight secured to said plunger rod, and a coil spring confined between said weight and said second plate, said spring being of comparatively large diameter.

18. A pump comprising a container having a bore through the bottom thereof, a bushing supported by said bottom and having a bore of comparatively small diameter communicating with said first named bore, a support carried by the bottom of said container, guide means carried by said support, a plunger rod reciprocable in said guide means, the lower end of said plunger rod being receivable in said cylinder bore, a weight secured to said plunger rod, a spring for returning .said plunger rod to its uppermost position, and buffer means located on opposite sides of said guide means for limiting the movement of said plunger rod.

19. A pump comprising a container, a supporting member removably connected with said container and including a cylinder, and an inertia actuated plunger supported by said member for expelling lubricant from'said container through said cylinder, said plunger plunger, a filter for filtering the material passing from said container into said cylinder, and means through which said container is filled, said means preventing said container 22. Handling means for material of a substantially liquid nature, comprising a container, a movable weight, a cylinder supplied with material from said container, piston means operable in'said cylinder and actuated by said weight,'and abutment means for limiting the movement of said weight and said piston means, saidabutment means and the parts restrained thereby having cooperating abutment surfaces of irregular shapes to makecontact only on small separated areas whereby the surfaces are prevented from sticking together.

In witness whereof, I hereunto subscribe my hand this 25th day of November, 1925.

ERNEST lV. DAVIS.

being removable with said member and eylinder h the plunger in operative relation witlnthe latter;

20. A pump comprising a container and'a pump unithoused in said container, said,

pump unit comprising a cylinder communieating with said container, a plunger for expelling material from said cylinder, inertia actuated means for reciprocating said 

